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Finding the Fourth Proportional to 574,789.34, 793,069.40 and 378,535.56

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Solution

The fourth proportional to 574,789.34, 793,069.40 and 378,535.56 is: 522,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,789.34 : 793,069.40 = 378,535.56 : x
  2. Step 2: Convert to fraction form
    574,789.34/793,069.40 = 378,535.56/x
  3. Step 3: Cross multiply
    574,789.34x = 793,069.40 × 378,535.56
  4. Step 4: Simplify right side
    574,789.34x = 300,204,969,447.86
  5. Step 5: Solve for x
    x = 300,204,969,447.86/574,789.34
  6. Step 6: Final answer
    x = 522,286.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.